var mover = new function(){ var base = this var last_room = null base.init = function(){ last_room = clipper.rooms[0] base.bind() } base.bind = function(){ app.on("move", base.update) } base.update = function(pos){ if (last_room && last_room.rect.contains(pos.x, pos.z)) return; var intersects = [] clipper.rooms.forEach(function(r){ if (r.rect.contains(pos.x, pos.z)) { intersects.push(r) } }) if (intersects.length) { $(".face.active").removeClass("active") last_room = intersects[0] } } }